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March 15, 2006, 00:43 
how to calculate heat transfer coefficient

#1 
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hi experts, i did one conjugate heat transfer(natural convection) problem in starcd. it shows my heat transfer coefficient of fin surface is 105 W/M2k. but my proffeser said in natural convection HTC is nearly 10 W/m2k only. but my apporoach is correct. then why i get this value. how to get correct value


March 15, 2006, 10:39 
Re: how to calculate heat transfer coefficient

#2 
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use hcoef and a Tbulk which is appropriate to the air temperature in the experimental setup which yields 10


March 16, 2006, 06:47 
Re: how to calculate heat transfer coefficient

#3 
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but my friend told starcd is not give correct value of hcc. because it calculate the heat transfer after that heat transfer/temp variation. so this process if takes near the fin fluis temp. that temp is nearly equal to fin temp. so thats whay it shows high HTC. because the temp variation is vary large. but he said that HTC is wrong. is his statement is correct or not. please tell me.


March 16, 2006, 14:01 
Re: how to calculate heat transfer coefficient

#4 
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There is a good reference on adapcoonline that discusses STAR's HTC.
http://www.adapcoonline.com click on Feature Articles  top left of page click on Heat Transfer  fourth article 

March 17, 2006, 05:39 
Re: how to calculate heat transfer coefficient

#5 
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thanks a lot. this site is very useful for me.


April 1, 2006, 03:45 
Re: how to calculate heat transfer coefficient

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hi experts in tutorial 11 natural heat transfer between solid and fluid. i want to find heat transfer coefficients of fin surface. but shows the large variation like 2000 to 0. because it takes base of the fin is around 2000 w/m2k. but how is it possible. then i cant find the actual variation of HTC in fin. because it shows the htc variation 0 to 2000 by 100 step. fin syrface htc is nearly 10. then how i find the correct answer thanks
 

May 6, 2006, 06:03 
Re: how to calculate heat transfer coefficient

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Hi,I want to know the theoritical value of overall heat transfer coefficient in a concentric tube heat exchanger?


May 9, 2006, 06:39 
Re: how to calculate heat transfer coefficient

#8 
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How to calculate heat tranfer coefficant between water nad organic compounds. Please provide me information regarding this


June 14, 2006, 02:46 
how to find heat transfer coefficient ketcup

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please can you help me how to find heat transfer coefficient ketcup and tomato paste


June 27, 2006, 01:39 
Re:

#10 
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how to calculate heat transfer coefficient


May 5, 2017, 16:04 
Heat transfer coefficient

#11 
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Jammy
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My problem is based on a condenser. Steamis condensing on the outer surface of a thinwalled circular tube of diameter D = 50mm and length L = 6m maintains a uniform outer surface temperature of 100C. Water ﬂows through the tube at a rate of 0.25 kg/s, and its inlet and outlet temperatures are Ti = 15C and To= 57C. What is the average convection coefﬁcient associated with the water ﬂow? Please suggest how to to find the avg heat transfer coeff. in fluent.


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